Method of regulating and proportioning the feed of dry or granular chemicals in water-mains.



-N G. G. EARL & A. B. woonl v METHOD OF REGULATING AND PROPORTIONING THE FEED 0F. DRY ORGRANULAR CHEMICALS IN WATER MMNS. I APPLICATION FILE!) my a. 1916.

' 1,200,325. Patented 00:. 3,1916.

2 SHEETS-SHEET 1.

METHOD OF REGULAT lNG-AND PROPORTIONING THE FEED 0F DR Y OR GRANU LAR GHEMICALS IN WATER MAWS.

Ammmon FILED mu 3. l9 l6- Patented Oct. 3, 1916 2 MEETS-SHEET 2.

ing a dry or granular chemical to a supply GEORGE GOODELL EARL AND ALBERT BALDWIN woon, or nEw'oELEANs, LOUISIANA.

mEnHon 0F REGULATING Ann rnoron'rlonme THE EEED 0E D'RY on GBANULAR cHEMIcALs m WATER-MAINS. r

Patented Oct. 3, 1916.

Original application filed May 10, 191 1, Serial 150. 626359. Divided and this application filed May 3, 1916.

' .Serial No. 95,031. 1

To all whom it may concern Be it known that we, GEORGE G. EARL and ALBERT B. Woon, both citizens of the United States, residing at New Orleans, parish of Orleans, and State of Louisiana,have invented certain new .and useful Improvements in Methods of Regulating and Proportionin'g the Feed of Dry or Granular Chemicals to Water-Mains; and we do hereby declare the followingito be a full, clear, and exact description of the; invention, such as will enable others skilled in the art to which it appertains-to make and use the same. p

Our'invention relates to a method of feedof water in proportion to the fiow of water.

As is well known, chemicals are often employed for sterilizing or performing other functions in connection with water, and it is highly important in many instances'that the dry or granular chemical fed should be in exact or substantially exact proportion to the quantity of raw water, especially where such water is to be used for drinking purposes, in order that the function of the chemical may be completely performed with-- out leaving an excess of chemical in the water.

We aim toproduce a method or process in which the supply of dry or granular chemical is automatically controlled by the fluid flow and maintained in substantially exact proportion to the flow of raw water, thereby avoiding any incomplete action of the chemical or any excess thereof left in the raw water.

Other objects of our invention and the invention itself will probably be better understood from a description of an embodiment of our invention and one set of mechanism for efiecting such embodiment.

Figure 1 of the drawing shows diagrammatically a portion of the apparatus used to illustrate one embodiment of our invention.

Fig. 2 shows a means for keeping check on the operation of such apparatus. shows the remaining apparatus employed to illustrate an embodiment ofour invention.

This application is a division of our application numbered 626,359, filed May 10,

Referring now to the drawing and to the apparatus illustrated therein at 1 is shown Fig. 3-

' a water main or conduit through which water flows under pressure from a source, not shown, but which will be readily under stood. At 4 is shown a chamber which is divided into two cells by a movable member 4,. The portion of the chamber on one side of the member 4 is connected to the-main l by a static tube 5 and a Pitot tube 2, which 1s connected'by an intermediate duct 3. It will be appreciated that any suitable means 1 may be employed for transmitting the pressures in the main to the movable member 4 In the form shownwe have illustrated the well known Pitot static tube combination,

' The member fl, is connected to a valve in 'the I valve-casing 7 by astem 6. The valve in the casing is a well known form of throttling valve and will be well understood from the description ofthe' operation of the apparatus.

At 9 is shown a tankto which a duct 8 leads from the source of fluid which is not shown, but which is wellunderstood; and which may be carried through a meter illu'strated at 10. The duct 8 passes through] the valve 7 into the tank 9. A second chambet is shown at 12 which is provided with a movable member similar to the member 4,, which is likewise connected to the valve in the casing 7 by a valve stem 11. The portion of the chamber 12 on the one sideo'ffthesii movable member 2 is connected by the duct 13 'to the tank 9, and the portion of the chamber 12 on the other side of the movable, member is connected by the duct 14 to the open air. It will be readily appreciated. that the pressure of the water' in the tank "9 plus the atmospheric pressure will act upon one side of the movable member and the atmospheric pressure alone act through the duct 14 on the other side of said member. A .95 spring 6 is employed to act upon the member 4 in a manner which will presently appear. v

An opening is provided at 15in the tank 9 through which water flows into a basin -.22 and thence through a duct 23 into one or the other of two compartments 27 and 28 of a vibratory tank'24 which is pivoted at 25 said tank being divided at 26. The water. flowing through 23 into the tank will bed proportional to the water flowing through of water flowing therethrough. The quantity-of'water'fiowing through 23 is maintained proportional to that flowing through .1, since whenever the velocity in l-increases, the valve in Twill be 'openedwider, owing to the deflection of the member 4,, which sure .will tend to move the system tothe right, compressing the spring 6 and reducing the opening in the pipe 8- by closing 7 the valve, 7.

As the tank 2 1 vibrates, it opens and closes 2o switches in electric "circuit connections. 7 These switches are shown at s and s", the switch 8 comprising the spring-mounted contacts 31 and 39 and the spring com prising the spring-mounted contacts 29 and 30. These switches are, connected by conductors with a battery B and electromagnets M and'M; The magnet M is'provided with .an'armature 35 which is connected by a stem 36 to a valve 34in the-valve casing 33 and the-magnet -M' is provided with anal-mature 37 connected by a stem 38 to the other end of said valve, l/Vhe'n the tank ..128 is at one end of its oscillation, the switch s" is closed andthe magnet M operated to move the valve to the position shownin'thedrawing, and when the tank is at the other extremity of its oscillation, the switch '8 is opened and the switch 8 is closed, so that the valve 34 will be atthe other end of its move- 40 menu :When the apparatus is in the position shown'in-the drawing,,water flows from a- ;source, not shown,j through the duct 4=0-4cl as indicated by the arrows, through 43, into a jpist'on chamber 51, moving to the'right,a pistorr"53 connected to a plston rod. 55 controlling the supply of dry or granular chemical to the vmain, inn manner which will presently appear. When the piston 53 has 'reached'its forward position, water passesthrough a duct 57 into a second-piston chamber 50, moving to the left a pistoni52 connected to a' piston rod 54, for a purpose which will presently appear. The pressure ofthe'wa-ter'on the right-hand side of the piston 52 will expel the water from that portion-of the chamber to the left of the plston 52, forcing it in the direction'of' the arrow through the duct 44, the .valvefit-and out 60-through the duct45l Wh en the, va1veis ,positiom-the operation willbe reversed, the

. the

tothe flow of fluid in theconduit. moved f by :the magnet M to; its. left-hand p v substance so that the aggregate of said} water now vpassingjthrough the duct5i6tfrom 50" to the-chamber ,51.' The. piston rods ands?) are connected respee 'tively to plungers 60 and 61 which operate and will all into a funnel 68 and thence 7 i through a duct (39 intdthe main. In order to insure that the chemicals will not lodge in the funnel, we provide a duct 72 controlled by the valve 73 throughwhich we may introduce water to flush. the funnel at 8Q any time and dislodge any chemicals which have not passed into the inain, though these; parts are not essential -to the operationof my device. At 67 we show a support for the funnel. I s ilnhig 2 there is shown a means for keeping check on the quantity of chemical fed. Afpin 81 is mounted in a bracket 83 upon one end of the tank, a spring 82 being em ployed to hold the pin lI1 tl1(3 position de 0 v sired. A wheel is shown at 8% provided with a plurality of pins 85. ii ratchet wheel 86 is fastened to the shaft 100 of the wheel 8 and prevents the main wheel returning.

88 is a registering meter and 89 a pin adapted to operate the meter, and projects into the path of the pin 85 and is moved to operate the register each time one of the pins 85 strikes it;

Wi e have illustrated and described .one embodiment of our invention and one kind of apparatus employed for effecting the same. lVe do not wish to be limited thereto, as many departures may he made therefrom without departing from the spirit of our invention. v

1. A method of the class described, which ...consists in i ecding a dry granular substance to waterfiowing through a water conduit 1-10 and controlling the rate of feed by a secondfiuid flow which flows at a rate proportional to said main fluid flow in the conduit and regulating said second fluid flow so that it will be proportional'to the flow of fluid in theconduit. j

2. A method of the class described, which consists in moving a solid substance proportional to water flowing through a COIldlllh and controlling the rate of movement of said 12o substance by a, second fluid flow which flows at a rate "proportional to said nlain fluid flow in said conduitand regulating said second fluid flow so that it will be proportiona 3. The method of moving aquantity of a fluid, whichconsists in creating aseparate 13G flow of fluid, causing said separate fiow to bear a proportional relation to said first named flow through the action of apparatus governed by fluid pressures derived from both of said flows and regulating the quan- 'tity of said substance moved by said separate flow. M

4. The method of moving aquantity of a solid substance so that the aggregate of said quantity shail hear proportional or functncnal relation to a quantity of flowing fluid, which consists in creating a separate flow of fluid, causing said separate flow to hear a proportional relation to said first-named flow through the actinof apparatus gov-..

owned by fluid pressures derived from both of said flows and regulating the quantity of said substance moved by said separate -flow.

The method of moving a quantity of a solid substance so that the aggregate of said quantity shall-hear a. proportional or func' tional relation to a quantity of a flowing fluid, which consists in creating a separate named flow through the action of apparatus one of said flows and regulating the quantity of said substance, by said separate flow. 6. The method of moving a solid substance so that-the quantity moved shall bear a functional relation to the quantity of a flowing fluid, which consists in utilizing a difference in fluid pressuies which is functional to the quantity of said fluid flow to govern a separate fluid flow proportional to the quantity of said flowing fluid and governing the movement of said substance by said separate flow. In witness whereof, we have signed our names this 25th day of April, 1916. 1

' GEORGE GOODELL EARL.

ALBERT BALDWIN TVOODJ' v governed by fluid pressures derived from 

